baber/WOPTO huggingface dataset:
Patent CA-2030667-A1 (CA)
Title: Process and apparatus for manufacturing a pleated filter insert
Inventor: SEILER HANSPETER
IPC: B29C53/22
Filed: 1990-11-22
Abstract: P9 5S02 A process and apparatus for the manufacture of a pleated filter insert made of a thermoplastic material. The pleat walls are maintained at a distance with the filter pleats open in the direction of outflow of the filter insert by elongated ribs made of the filter material itself. The tape-like filter material is gathered in a first process step. The elongated ribs are produced by means of tension-free, permanent shaping of the gathered filter material, heated to a temperature which is below the shrinking temperature and above the deformation temperature of the filter material, between the jaws of a shaping device. The intermediate areas of the filter material intended for the forming of pleat wall edges are heated by at least one heater jaw to a temperature which is between the deformation temperature and the melting temperature until the irregularities of the filter material in the intermediate area have been smoothed out. The filter insert, provided with elongated ribs in the filter pleat wall for maintaining a distance also maintains the original filtering properties in the pleat walls, has a smooth surface at the pleat wall edges, and has sufficient stability.
Patent CA-2032199-A1 (CA)
Inventor: ALLEAUME JEAN-FRANCOIS
IPC: B01J19/00
Filed: 1990-12-13
Abstract: Ce distributeur comprend : une couronne périphérique ; une série de parois verticales fixées à la couronne à chaque extrémité et s'étendant parallèlement entre elles ; une obturation étanche délimitant entre les parois verticales des espaces alternés de collection de gaz et de collection de liquide ; un dispositif permettant l'évacuation vers le haut du gaz contenu dans les espaces de collection de gaz ; et un fond perforé disposé à la base de chaque espace de collection de liquide et relié à joint étanche à la ou à chaque paroi verticale adjacente et à la couronne. Application aux colonnes de distillation d'air.
Patent CA-2032740-A1 (CA)
Title: Expansion joint for bridge structure
Inventor: UEDA AKIRA
IPC: E01C11/02
Filed: 1990-12-19
Abstract: An expansion joint for bridge structure (1) comprising a layer of composite (5) consisted of rubber grains (6) as the aggregates and synthetic resins (7) with lower modulus of elasticity as the binder. <IMAGE>
Patent CA-2033658-A1 (CA)
Title: Glucose isomerases with an altered ph optimum
Inventor: LAMBEIR ANNE-MARIE V R
IPC: C12N15/09
Filed: 1991-01-04
Abstract: A method for selecting amino acid residues is disclosed which upon replacement will give rise to an enzyme with an altered pH optimum. The method is specific for metalloenzymes which are inactivated at low pH due to the dissociation of the metal ions. The method is based on altering the pK a of the metal coordinating ligands or altering the K sss for the metal binding. New glucose isomerases with an altered pH optimum are provided according to this method. These altered properties enable starch degradation to be performed at lower pH values.
Patent CA-2033782-A1 (CA)
Title: Process for preparing pentafluorodichloropropanes
Inventor: AOYAMA HIROKAZU
IPC: C07C17/26
Filed: 1991-01-08
Abstract: ABSTRACT         The present invention is directed to a process for preparing 1,1,1,2,2-pentafluoro-3,3-dichloropropane and 1,1,2,2,3-pentafluoro-1,3-dichloropropane.  The process comprises reacting dichloromethane and tetrafluoroethylene in a solvent in the presence of a catalyst and has improved conversion and selectivity characteristics.
Patent CA-2035522-A1 (CA)
IPC: B21H1/04
Filed: 1991-02-01
Abstract: TITLE             PROCESS FOR MANUFACTURING AN ASYMMETRIC      PULLEY FROM A METAL DISK                         APPLICANT              Leifeld GmbH & Co.                          INVENTOR       Helmut WENZEL     ABSTRACT     The hub part of a flat disk is clamped between the jaws of a chuck and a protruding circumferential part is formed against the chuck by a roller so that the formed material is distributed axially off-center with respect to the hub part. The formed material is then flattened by a further roller to form a cylindrical preform which is likewise axially off center with respect to the hub part.  The preform is formed by a last roller to provide a circumferential area with a final profile for guiding a belt.
Patent CA-2035591-A1 (CA)
Inventor: ALBERT LUC
IPC: C01G15/00
Filed: 1991-02-04
Abstract: Process for the extraction of the thallium present especially in aqueous effluents of industrial origin. The process, which makes it possible to extract and to recover thallium from a solution which contains it in the form of a salt of a strong inorganic acid comprises a stage of bringing the said solution into contact with an ion exchange resin containing a thiol group. This process exhibits a good selectivity in relation to the salts of metals or metalloids usually present in industrial aqueous effluents.
Patent CA-2036020-A1 (CA)
Title: Inhalation device
Inventor: PESENTI YVAN
IPC: A61M15/00
Filed: 1991-02-08
Abstract: An inhalation device is provided for use with an aerosol container (208) having a body portion and a discharge stem (216) movable with respect to the body portion from a rest position in which discharge is prevented to an operative position in which discharge takes place. The device has a housing (202) for the inhalation device, and an outlet (204) provided in the housing through which a patient can inhale. A restraining and pressure-sensing member is provided in the form of a resiliently flexible plate (234). The plate has a first position in which it prevents relative movement between the discharge stem and the body portion to the operative position and a second position in which it permits such movement. The plate senses when a reduced pressure is produced through inhalation by the patient and moves from the first position to the second position in response thereto.
Patent CA-2039822-A1 (CA)
Title: Cathode-ray tube having improved 16 x 9 aspect ratio faceplate panel
Inventor: MARESCA ALFREDO
IPC: H01J31/20
Filed: 1991-04-04
Abstract: The present invention provides an improvement in a cathode-ray tube that includes a rectangular faceplate panel having two peripheral long sides and two peripheral short sides, wherein the ratio of length of the long sides to the length of the short sides is approximately 16/9. The tube includes a major axis which parallels the two long sides and a minor axis which parallels the two short sides. A rectangular viewing screen is located on an inner surface of the faceplate panel. The improvement comprises the long sides of the panel having a radius of curvature in a plane of the major and minor axes that is about 7 to 10 times longer than a diagonal dimension of the viewing screen, and the ratio of the radius of curvature of the long sides to the radius of curvature of the short sides being in the range of about 1.6 to 1.9.
Patent CA-2040218-A1 (CA)
Title: Log-look siding corner blocks
Inventor: LINDAL RONALD J
IPC: E04B2/70
Filed: 1991-04-11
Abstract: ABSTRACT OF THE DISCLOSURE        The siding for a building exterior may be double-sided. the  siding  being  in  the  form of  tongue  and groove  boards having  a  rough  cut  surface  finish  on  one  face  and  a log-profile  on  the  other  face.   A corner  block  structure simulating traditional dovetail log joints may be used with the log-look face and provides a low cost, easily fabricated corner block particularly suited for ready installation to the exterior corners of a building,  in finishing and protective relation therewith.
Patent CA-2042189-A1 (CA)
Inventor: GIOVANETTI ANTHONY J
IPC: B60R21/231
Filed: 1991-05-09
Abstract: To deploy an inflatable member, such as an occupant restraint safety bag in a motor vehicle, a liquid propellant is expelled from a storage reservoir into a reaction chamber through ports created at frangible pressure points in the reservoir wall and ignited by detonation of an explosive charge to generate a non-toxic, bag inflating gas by exothermic reaction.
Patent CA-2043005-A1 (CA)
Title: Starter system for an internal combustion engine
Inventor: KIMURA EIICHI
IPC: F02N15/00
Filed: 1991-05-22
Abstract: A starter system for an internal combustion engine having a casing provided with a mounting circumferential surface adapted to be substantially closely fitted into an associated mounting bore provided in the engine or a transmission housing associated therewith, and a mounting flange extending radially from the casing and provided with a mounting end surface perpendicular to a longitudinal line of the output shaft of the starter system and spaced from the mounting circumferential surface along the longitudinal line. Because of the presence of the distance between the mounting end surface of the mounting flange and the mounting circumferential surface of the starter casing closely fitted into the mounting bore, the reaction force acting on the pinion is prevented from being amplified and transmitted to the mounting surfaces by means of an undesirable lever action.
Patent CA-2044337-A1 (CA)
Inventor: BREUKER WALTER
IPC: B01J19/00
Filed: 1991-06-11
Abstract: O.Z. 4494 Abstract:   1.   Device and process for precipitating polymer from polymer-containing solutions, emulsions or suspen-sions.   2.1  For precipitating polymers, steam or hot water has hitherto been used, which was injected into the polymer-containing fluid. By means of the device according to the invention and the process according to the invention, the polymer is completely precipi-tated, effectively freed of monomers and degassed, if the polymer is conveyed in an organic solvent.   2.2  The precipitation device consists of a nozzle plate, in  which  each  outlet  orifice  for  the  polymer-containing fluid is associated with a nozzle for at least one precipitant fluid, the axis thereof being essentially perpendicular to the axis of the outlet orifice. The end of the outlet orifice lies approxi-mately in the centre plane of the nozzle for the precipitant fluid. The precipitation step proceeds predominantly in the liquid phase and the precipi-tated polymer is discharged with the liquid phase. The size distribution of the precipitated particles is narrower, and the particles are less compact and contain less solvent than in other precipitation processes.   2.3  Precipitation  of  -  even  tacky  -  polymers  from polymer-containing  fluids,  such  as,  for  example synthetic rubber from an organic polymer solution.   3.   Figure 2.
Patent CA-2044391-A1 (CA)
Title: Laser catheter diffuser
Inventor: KHOURY ADIB I
IPC: A61N5/06
Filed: 1991-06-12
Abstract: LASER CATHETER DIFFUSER                     ABSTRACT OF THE DISCLOSURE A light transmitting and diffusing apparatus is disclosed for activating photodynamic therapy in soft cancerous tumors.  In the preferred embodiment, the apparatus is affixed to a standard medical laser that transmits light through an optical fiber to a point adjacent to or within a cancerous tumor.  The apparatus includes an unclad fiber-optic core with a reflective cap at a terminal end of the core.  A diffuser matrix coats the unclad fiber-optic core and a transparent tubular sleeve encases the matrix and core.  The transparent tubular sleeve includes a conical tip adjacent to the terminal end of the core for easy penetration of the cancerous tumors.  In use, light leaves the medical laser, travels along the optical fiber into the unclad fiber-optic core. There, some light passes directly out of the core through the diffuser matrix, and the remaining light is reflected, by this reflective cap, back into and around the core, away from its terminal end.  The resulting pattern of diffuse light is roughly shaped like a "butternut-squash", producing a decreased risk of damage to blood vessels, nerves, etc., that may be just beyond the terminal end of the core, along its longitudnal axis.
Patent CA-2045799-A1 (CA)
Inventor: THOMPSON KENNETH L
IPC: G06F12/00
Filed: 1991-06-27
Abstract: A file system which has component file systems including a primary file system which is read/write and a number of dump file systems which are read only. Each dump file system is created from the primary file system by means of a dumpoperation and conserves the state of the primary file system at the time the dump operation was performed. Component file systems share read only storage elementswith older component file systems. The file system is implemented on a system including a file server, a magnetic disk mass storage device, and an optical write once-read many (WORM) disk. The magnetic disk mass storage device contains the read/write storage elements of the primary file system and encached read only storage elements from the WORM disk. Space is reserved on the unwritten portion of the WORM disk for the read-write storage elements of the primary file system.Techniques for performing file operations including opening, reading, writing, creating, and deleting files are disclosed, as well as techniques for performing the operations of dumping and restoring the primary file system.
Patent CA-2046124-A1 (CA)
Title: Cyclic peptides
Inventor: YAMAMURA TAKESHI
IPC: C07K17/14
Filed: 1991-07-03
Abstract: ABSTRACT OF THE DISCLOSURE        A novel peptide represented by formula (I):            Cyclo-(Cys-Val-d-Phe-Pro)2    (I) wherein Cys indicates a cysteine group, Val indicates a valine group, d-Phe indicates a d-phenylalanine group, Pro indicates a proline group, and Cyclo indicates a cyclic form.  This peptide is formed by way of active esterification or azidation of an intermediate:           Boc-Cys(Acm)-Val-Cys(Acm)-d-Phe-Pro-OME wherein Boc indicates an amino group protected by a t-butyloxycarbonyl group, Acm indicates an SH group protected by an acetamidomethyl group, and OMe indicates a methoxylated carboxyl group.
Patent CA-2046644-A1 (CA)
Title: Device for crushing pills and the like
Inventor: GREEN FRANK A
IPC: B02C4/10
Filed: 1990-02-09
Abstract: A rotatable crusher wheel (22) is mounted in a housing (21) and receives pills via an opening (32). Rotation of the wheel (22) creates a crushing action on the pills, which is facilitated by projections on the wheel periphery and on the confronting internal walls (31) of the housing. The powder formed by the crushing action then falls into a receptacle (24) which can be detached for subsequent removal and use of the powder. The housing comprises two components (23, 24) which together define a bearing for an axle (27) of the wheel (22), the components being separable to allow insertion of the wheel during initial assembly of the device.
Patent CA-2047612-A1 (CA)
Title: Branched block copolymer, procedures for its preparation and use
Inventor: CUSTRO SERGIO
IPC: C08F297/02
Filed: 1991-07-23
Abstract: EE.4159 BRANCHED BLOCK COPOLYMER, PROCEDURES FOR ITS PREPARATION AND USE.     Abstract A branched block copolymer is described, which can be defined by the formula  (B1-T-A-B2)nX, where B1 and B2 are polydiene blocks, A is an aromatic polyvinyl block, T is a random copolymer segment made up of dienic monomeric and aromatic vinyl units, X is a coupling radical having a valence equal to n, and n is a whole number ranging from 3 to 20.    This kind of block copolymer is used in formulations of adhesives having an excellent balance of adhesive,  cohesive, rheological  characteristics,  as well  as resistance to heat oxidation,  and  in  compositions  together with  thermoplastic polymers  capable  of  giving products  with  improved  shock resistance and transparency.
Patent CA-2047924-A1 (CA)
IPC: G09F13/00
Filed: 1991-07-25
Abstract: In an exit sign, a canopy bracket has a pair of resilient spring fingers which are inserted through a central circular opening of a mounting plate mounted to a standard electrical box located in a wall or ceiling.  The spring fingers temporarily secure the canopy bracket to the mounting plate thus allowing an electrician to easily align and secure screws to the mounting plate, thereby greatly facilitating installation.  The wires from the electrical box are extended through mounting plate and the canopy prior to securing the canopy to the mounting plate.  Once secured, the user simply fits a hub portion of the canopy bracket telescopically within an opening with the exit sign housing.          Spring capture barb members of the hub engage the housing to fixedly secure the exit sign to the wall or ceiling.  Then the user connects the wires extending from the canopy bracket to those in the exit sign.
Patent CA-2048872-A1 (CA)
Title: Method of forming a nitride or carbonitride layer
Inventor: ARAI TOHRU
IPC: C23C16/442
Filed: 1991-08-09
Abstract: A nitride or carbonitride layer is formed on the surface of a metal material as follows:      A treating agent composed of a refractory powder of alumina or the like and a powder of a metal for forming a nitride or a carbide or an alloy thereof is disposed in a fluidized bed furnace; the treating agent is fluidized to form a fluidized bed by introducing an inert gas; the fluidized bed furnace is heated to a temperature of not higher than 700°C; an activator of a halogenated ammonium salt is intermittently supplied into the fluidized bed at a rate of 0.001 to 5 wt%/hour based on the total amount of the treating agent; and the metal material to be treated is disposed in the fluidized bed during or after any of the above steps.      For example, a nitride layer composed of only a metal for forming a nitride which contains almost no Fe-N is formed on the surface of iron steel even at a temperature as low as not higher than 700°C. The layer is very hard and efficient in wear resistance, and the toughness of the base metal is hardly lowered.
Patent CA-2051039-A1 (CA)
Inventor: PADAMSEE RIAZ A
IPC: A47J31/50
Filed: 1991-09-10
Abstract: Abstract of the Disclosure A double-walled vacuum insulated container has a heat input portal for heating of the contents of the container.  Also disclosed are methods of fabricating such a container.  The container is particularly useful for heating and storage of liquids, e.g., coffee, containing thermally labile components, to prevent degradation of the taste, flavor and aroma characteristics thereof.   app12139
Patent CA-2052871-A1 (CA)
Title: Sodium dithionite preparation containing water
Inventor: LEUTNER BERND
IPC: C01B17/66
Filed: 1991-10-07
Abstract: BASF AKTIENGESELLSCHAFT                                 O.Z.0050/41957 Abstract of the disclosure:   A stabilized alkalized dithionite preparation which contains water and has a sodium dithionite content of from 60 to 70 % w/w and a water content of from 15 to 30 % w/w, the total content of these two components not exceeding 90 % w/w, contains a sodium and/or potassium salt dissolved in water and inert to sodium dithionite, its solubility in water being at least 500 9/1 at 20°C. The concentration of the dissolved salt should be at least 200 9/1. The said preparation contains, as stabilizer, zinc, a zinc compound, butylene oxide, and/or ascorbic acid.
Patent CA-2053784-A1 (CA)
Inventor: SUE JIIJEN A
IPC: C25F5/00
Filed: 1991-10-21
Abstract: An electrolytic process for stripping a group IVB or VIB metal coating compound from a titanium based metal substrate using an aqueous electrolyte comprising an oxidizing reagent and an acid with a solution pH of less than 4.5.
Patent CA-2054626-A1 (CA)
Title: Burners
Inventor: WATSON RICHARD W
IPC: F23D14/32
Filed: 1991-10-31
Abstract: ABSTRACT                         BURNERS   An oxygen-air-fuel burner has an open-ended, tubular, body member 2 having an inlet 4.  The body member 2 defines a passage through which extend a plurality of first elongate open-ended tubular members 36 whose axes each extend generally parallel to the axis of the body member 2.  The proximal end of the body member 2 terminates in a back plate 8 through which the proximal ends of the members 36 communicate with a first gas distribution chamber 10 having an inlet 16.  The burner also includes a plurality of second, elongate, open-ended, tubular members 40 extending through respective first tubular members 36 from a second fluid distribution chamber 22 having an inlet 32.  In operation, the chamber 22 and second tubular members 40 communicate with a source of commercially pure oxygen or oxygen-enriched air, the chamber 10 and the first tubular members with a source of fuel gas, and the passage 2 with a source of air.  The fluids mix with one another on leaving the distal end of the burner.  The tubular members 36 and 40 and the passage 4 each have a distal end which communicates directly with the burner flame, no end plate being used.
Patent CA-2055534-A1 (CA)
Title: Surgical suture package having an embossed pattern
Inventor: THOMPSON ROBERT F
IPC: A61B17/06
Filed: 1991-11-14
Abstract: Title Surgical Device Package Having an Embossed Pattern Abstract An improved surgical device package can have a back panel and a cover flap foldably connected to one side of the back panel.  The back panel and cover flap each  have  a  coordinating  surface.   The  improvement comprises  a  plurality  of  embossed  patterns  on  the coordinating surfaces of the back panel and cover flap.
Patent CA-2056327-A1 (CA)
Title: Locker providing an efficient ventilation of its content
Inventor: DALLAIRE MICHEL
IPC: A47B61/00
Filed: 1991-11-27
Abstract: ABSTRACT     The locker comprises a back wall, a top wall, a bottom wall, a front wall and two side walls to form a chamber. The front wall is provided with a door by which a user can have access to the chamber. The front wall forms with the side walls two lateral vertical edges that are respectively provided with two wire meshes along at least a portion of their length whereby air circulation inside the chamber can be provided by means of the two wire meshes.
Patent CA-2058910-A1 (CA)
Title: Boron compounds
Inventor: THOMAS ANDREW P
IPC: C07F7/22
Filed: 1992-01-07
Abstract: ABSTRACT                          BORON COMPOUNDS        The invention concerns novel boron compounds of the formula IV, in which Q, Y1, G1 and G2 have the various meanings defined herein, and their acid and base addition salts.  The said compounds are useful in the manufacture of certain quinoline, pyridine and imidazole derivatives which have angiotensin II inhibitory activity.  The invention also provides novel processes for the production of the quinoline, pyridine and imidazole derivatives.
Patent CA-2059060-A1 (CA)
Title: Cell surface receptor complimentation
Inventor: COAN MICHAEL H
IPC: C12N15/09
Filed: 1992-01-09
Abstract: A method of controlling the amount of a biologically active substance binding to a cell surface having both receptors to the substance and receptors for the Fc domain of an antibody that can complex with the substance or other antibodies that can complex with the substance. By exploiting the generally more numerous Fc receptor sites, substance binding can be increased and/or controlled. Method contemplates controlling amounts of substances such as cytokines, hormones, and growth factors that are associated with cells such as monocytes, macrophages, granulocytes, B cells, T cells, and platelets. Method is illustrated using conjugated antibodies to tissue necrosis factor (TNF) to increase the binding of TNF to monocytes.
Patent CA-2061233-A1 (CA)
Title: Heating apparatus for articles of food
Inventor: HOEBERIGS HENRICUS
IPC: A47J37/04
Filed: 1992-02-14
Abstract: ABSTRACT :            HEATING APPARATUS FOR ARTICLES OF FOOD.            A heating apparatus for articles of food comprises a recipient (4) where the articles of food which are to be heated are brought and which may rotate around a axis during heating. The apparatus further comprises a roof (6) which forms with the recipient (4) an almost closed room during heating. The axis may form an adjustable first angle with a vertical line. The apparatus further comprises means such that the roof (6) may rotate relatively with regard to the recipient (4) over a second angle which is smaller than 60° to allow for filling or emptying the heating apparatus with articles of food. The heating apparatus may be used for substantially all articles of food which may be heated and the apparatus has a good thermal efficiency.